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United States Patent | 5,178,838 |
Sala ,   et al. | January 12, 1993 |
A chemical reagent vial has an elongated shape from the end portions of which extend two lugs, one of which is closed by a frangible membrane which can be broken by a projection of a funnel element which can be screw engaged on a set lug. The other lug having an outer surface at least a portion of which is conical and on which tightly abuts a conical surface of a hollow sleeve which, moreover, tightly engages with a thread of the lug thereon the sleeve is threaded, through the lug at least an outlet hole being formed, which is arranged between the two sealing regions of the sleeve on the lug.
Inventors: | Sala; Nello (Mi, IT); Passerini; Gilberto (Milan, IT); Buelli; Mario (Milan, IT); Conti; Davide (Milan, IT); Lorenzo; Rosario D. (Milan, IT); Secondini; Ivo (Milan, IT); Bravi; Simona (Milan, IT) |
Assignee: | Farmitalia Carlo Erba S. R. L. (Milan, IT) |
Appl. No.: | 732913 |
Filed: | July 19, 1991 |
Jul 27, 1990[IT] | 21568/90[U] |
Current U.S. Class: | 422/102; 422/100; 422/103; 422/935; 436/180 |
Intern'l Class: | B01L 003/00 |
Field of Search: | 422/102,99,100,101,103 435/296 222/552,91 220/231,277,267,360 215/257,228 436/180 |
3875012 | Apr., 1975 | Dorn et al. | 215/DIG. |
4342724 | Aug., 1982 | Narra | 422/101. |
4346613 | Aug., 1982 | Turner et al. | 3/864. |
4353868 | Oct., 1982 | Joslin et al. | 422/101. |
4723687 | Feb., 1988 | Kutterer | 222/83. |
Foreign Patent Documents | |||
842178 | Jun., 1939 | FR. |